data p233;
  input YEAR IMPORT DOPROD STOCK CONSUM;
cards;
49 15.9 149.3 4.2 108.1
50 16.4 161.2 4.1 114.8
51 19 171.5 3.1 123.2
52 19.1 175.5 3.1 126.9
53 18.8 180.8 1.1 132.1
54 20.4 190.7 2.2 137.7
55 22.7 202.1 2.1 146
56 26.5 212.4 5.6 154.1
57 28.1 226.1 5 162.3
58 27.6 231.9 5.1 164.3
59 26.3 239 0.7 167.6
60 31.1 258 5.6 176.8
61 33.3 269.8 3.9 186.6
62 37 288.4 3.1 199.7
63 43.3 304.5 4.6 213.9
64 49 323.4 7 223.8
65 50.3 336.8 1.2 232
66 56.6 353.9 4.5 242.9
;
run;